Understanding Global Liquidity

Transcription

1 Understanding Global Liquidity Boris Hofmann Bank for International Settlements Seminar presentation at the National Bank of Poland 13 May 214 The opinions are those of the author only and do not necessarily reflect those of the Bank for International Settlements

2 Outline Global liquidity: Concept and measurement CGFS (211): Global liquidity concept, measurement and policy implications Domanski, Fender and McGuire (211): Assessing global liquidity BIS (213): Global liquidity indicators Bruno and Shin (212): Capital flows, cross-border banking and global liquidity Understanding global liquidity: What are the underlying drivers? Eickmeier, Gambacorta and Hofmann (213): Understanding global liquidity 2

3 Global liquidity: Concepts and measurement Global liquidity has become a popular term in the policy debate. Already referred to in the context of the Asian crisis Ample global liquidity suggested as a key factor in the run-up to the global crisis Recently used in the context of spillovers of loose monetary conditions in AEs to EMEs but is a vague concept ease of financing (CGFS 211) 3

4 Measuring global liquidity Traditional approach: broad money aggregates for major economies But banks leveraging and increased reliance on non-monetary liabilities have made monetary aggregates an outdated gauge of liquidity from a financial stability perspective Credit widely seen as a superior indicator of building up financial imbalances (Borio/Lowe 24, Schularick/Taylor 212) Global credit represents the end of the financial intermediation chain and the final outcome of the interaction of different sources of global liquidity (e.g. CGFS 211) 4

5 Global credit aggregates Global bank credit aggregates, by borrower region At constant end-q1 213 exchange rates Full country sample 1 USD trn Per cent United States USD trn Per cent Euro area USD trn Per cent Asia-Pacific USD trn Per cent Latin America USD trn Per cent Emerging Europe USD trn Per cent Levels (lhs): 2 Cross-border credit Domestic credit Growth (rhs): Cross-border credit Domestic credit Aggregate for a sample of 56 reporting countries. 2 Total bank credit to non-bank borrowers (including governments), adjusted using various components of the BIS banking statistics to produce a breakdown by currency for both cross-border credit and domestic credit. Sources: IMF, International Financial Statistics; BIS international banking statistics; BIS calculations. 5

6 Cross-border credit The international component of credit (i.e. cross-border credit) plays an important role in the dynamics of global credit Global banks borrow in financial centres money markets and distribute the liquidity globally (Bruno and Shin 212) 6

7 Global liquidity transmission Source: Bruno and Shin (212) 7

8 Growth of international claims Year-on-year rate of growth in international claims 1 Per cent Per cent VIX (lhs) Credit to non-banks (rhs) Credit to banks (rhs) 1 Includes all BIS reporting banks cross-border credit and local credit in foreign currency. Sources: Bloomberg; BIS locational banking statistics by residence. 8

9 Cross-border lending and domestic credit booms Funding of lending by Spanish banks In billions of euros 1 Liabilities to the domestic households and non-financial corporations. 2 As part of Eurosystem s open market operations. 3 Defined as the difference between total bank credit and the sum of core liabilities and long-term refinancing. Sources: Datastream; BIS. 9

10 Second phase of global liquidity Source: Shin (213) 1

11 Global liquidity: Complementary indicators Monetary liquidity Funding liquidity Risk appetite 11

12 Monetary liquidity Indicators of monetary liquidity Global real short-term interest rates 1 Ten-year nominal term premium Advanced economies Emerging markets United States Germany 2 Central bank assets, in USD trillions Official FX reserves Advanced economies Emerging markets In $trn (lhs) As % of GDP (rhs) Based on the 12-months ahead average inflation expectations. 2 Ten-year nominal term premium (the sum of the real risk premium and the inflation risk premium) as derived from econometric term structure models. Sources: Bloomberg; Datastream; IMF, International Financial Statistics; OECD, Main Economic Indicators; Consensus Economics; Datastream; BIS calculations. 12

13 Funding liquidity Bank CDS premia and short-term bank funding conditions Bank CDS premia, five-year 1 Three-month Libor-OIS spread Basis points Basis points Basis points Basis points Senior debt Q3 13 Subordinate debt US dollar Euro Pound sterling Yen Q Canadian dollar Australian dollar 1 2+ major banks in the advanced economies. Sources: Bloomberg; Markit. 13

14 Risk appetite Risk appetite and market positioning VIX and MOVE indices, 1 Jan 1991 = 1 Net inflows into hedge funds VIX MOVE Net inflows (USD bn, lhs) Return (%, rhs) 2 1 Information based on active funds reporting to HFR database. Most recent data are subject to incomplete reporting. 2 HFRI Monthly Performance Indices calculated by Hedge Fund Research; 12-month moving average Sources: Bloomberg; HFR; BIS calculations. 14

15 Summing up Global credit is a key indicator of global liquidity, in particular its international component Larger range of price- and quantity-based indicators need to be considered when assessing global liquidity conditions 15

16 Understanding global liquidity: What are the drivers? Considering the plethora of liquidity indicators is also helpful to understand the underlying drivers of global liquidity dynamics Price- and quantity-based indicators can together help to identify underlying supply and demand factors 16

17 A factor approach to global liquidity analysis Global liquidity interpreted as common global factor(s) in credit market dynamics (similar to previous studies exploring the global business cycle and global inflation using factor analysis) Analysis proceeds in two steps To which extent are dynamics in credit markets (and of other indicators of liquidity conditions) global in the sense of being shared by many countries? What are the underlying (structural) driving forces of observable global liquidity conditions? - Relevant for tailoring appropriate policy responses 17

18 Scope of the analysis Factors estimated from a large dataset comprising interest rates, stock market volatility, money and credit aggregates from 27 economies over Illustration of internat. comovement of interest rates, money/credit growth Adds to the literature on global economic comovements, which has so far focused on macro variables (Ciccarelli/Mojon 21, Kose et al. 23) Identification of a global monetary policy factor, a global credit supply factor and a global credit demand factor. Assessment of the temporal evolution of these structural factors, their importance at the global level and at the country/regional level 18

19 Data (1) Country coverage: 27 advanced and emerging economies Sample period: 1995Q1-211Q4 Large liquidity dataset (X t ) interest rates (overnight rate, 3-month money market, government bond yield, business and mortgage lending rates) M, M2 credit aggregates (domestic and cross-border bank credit) stock market volatility US financial data from Hatzius et al. to capture non-bank credit and liquidity conditions in the main global financial center 19

20 Data (2) Large macro dataset (X m t): GDP, consumption, investment, CPI, PPI, GDP deflator We use quarterly data to eliminate noise. Panel unbalanced Expectations Maximisation (EM) algorithm Data are stationary, normalized and outlier adjusted. interest rates and stock market volatility enter in levels, all other variables in (yoy) log differences. 2

21 International co-movements of liquidity indicators: Factor model Approximate dynamic factor model (Stock/Watson 22, Bai/Ng 22, Chamberlain/Rothschild 1983) applied to X t / X m t / variablespecific datasets x ' F e, i 1,..., N it, i t it, Commonality given by var( ' F ) / var( x ) i t i, t 21

22 International co-movements of liquidity indicators (1) Cumulated variance shares explained by the first 1 PCs of individual liquidity and macro data groups # factors r dc growth cbc growth blr mlr stock mkt vola m2 growth gdp growth cpi infl

23 International co-movements of liquidity indicators (2) First principal component extracted from individual liquidity and macro data groups r dc growth cbc growth blr mlr stock mkt vola m2 growth gdp growth cpi growth

24 International co-movements of liquidity indicators (3) Cumulated variance shares explained by the first 1 PCs of large liquidity and macro data sets All financial All macro All financial variables after # factors variables variables purging of the macro factors

25 What next? Common factors and loadings not identified separately because ' F ' RR F ' F * * * 1 * * * i t i t i t for any invertible matrix R Trying to interpret the factors extracted from the full dataset is hopeless But we can extract interpretable factors by rotating the factors so that they satisfy theoretically motivated sign restrictions Extends the literature on interpretable factors (e.g. Kose et al 23, Lengwyler/Lenz 21) by borrowing from SVAR literature 25

26 Conceptual framework I: A simple supply/demand framework of the loan market (1) L D = b 1 Y b 2 i L Loan demand i L = µ + i M Loan supply 26

27 Conceptual framework I: A simple supply/demand framework of the loan market (2) 27

28 Conceptual framework I: A simple supply/demand framework of the loan market (3) Increase in loan demand is associated with nondecreasing loan quantity and non-decreasing loan rate Increase in loan supply is associated with non-decreasing loan quantity and non-increasing loan rate 28

29 Conceptual framework II: Sticky loan rates Menu costs in loan rate adjustment and relationship banking lead to a delayed adjustment of loan rates to changes in policy rates An monetary policy loosening is associated with an increase in the spread of loan rates over policy rates Yields additional restriction to disentangle monetary policy from credit supply 29

30 Sign restrictions Sign restrictions consistent with theory on loadings (on average over all countries) to identify global MP, credit supply and credit demand factors Overnight rate Business and mortgage Business and mortgage Domestic and crossborder lending rates lending rate spreads credit growth Monetary policy factor Credit supply factor Credit demand factor 3

31 Interpretable global liquidity factors: Implementation Purging out macro factors Each liquidity variable x i,t regressed on F m t, where F m t estimated as the first 3 PCs from macro dataset (other approaches to purging could be considered) Impose sign restrictions on factor loadings Latent liquidity factors purged of macro factors F* t estimated as the first 3 PCs from the residuals Draw rotation matrix R and check if corresponding factor loadings fulfill sign restrictions on average across countries (until we have 1 factors) 31

32 Temporal evolution of identified global liquidity factors 32

33 Robustness checks 33

34 Global variance decompositions I (baseline factors) 34

35 Global variance decompositions II (baseline factors) 35

36 Conclusions High degree of international comovement in interest rates and credit growth across countries. Global MP, credit demand and credit supply factors identified using sign restrictions. Pre-crisis credit boom due to surge in credit supply and macro developments. Credit demand growth contributed at a later stage. At the end of the sample, weak credit demand and supply and loose monetary policy. 36